Resource Type
Serial/Series Title
United States Bureau of Mines Reports
12
Farmers' bulletin (United States. Dept. of Agriculture)
9
Information circular (United States. Bureau of Mines)
3
Bulletin (United States. Bureau of Mines)
2
Annual Report of Research and Technologic Work on Coal
1
Fiscal Year 1948
1
Fiscal Year 1949
1
Fiscal Year 1950
1
Petroleum technology (United States. Bureau of Mines)
1